Fuel injection pump mounting



Nov. 4, 195a g. H-.-HAAS' 2,858,824

FUEL- INJECTION PUMP MOUNTING Filed June 18, 1956 w s Sheets-Sheet 1 3 I FIGJQ INVEN TOR.

vfrel 777%! ATTORNEYS v Nov. 4, 1958 H. H. HAAS 2,358,824

' FUEL INJECTION PUMP MOUNTING Filed June 18, 1956 v 5 Sheets-Sheet 2 INVENTOR.

ATTORNEYS 8 HI H. HAAS FUEL INJECTION PUMP'MOUNTING Nov. ,4, 1958 s Sheets-sheet 3 Filed une 18, 1956 w'k V ATTORNEYS United States Pate t .z;sss,s24

FUEL INJECTION .PUMP MOUNTING Herbert H. Haas,-Royal Oak, Mich., assignor, by mesne assignments, 'to Continental Motors Corporatlon, Muskegon, Mich.,.a corporation .of Virginia Application June 18, .19'56,Serial No. 591,901

8 Claims. (.61. 123-195 pumps often involves removal or disassembly of other 7 associated or interfering equipment.

An object of my ,inventionis'to facilitate assembly of accessories on an engine by constructing a unitary mount for a plurality of accesories on which accessories may be "bench assembled and adjusted, and provided .with means for aligning the accessories with their associated drives during assembly on the engine.

A further object of my invention .is to facilitateaassembly and maintenance of fuel injection pumps on fuel injection engines by providinga unitary mount for a plurality of pumps which may .be readily .removed from the engine with the pumps attached for accomplishing bench testing and adjustment.

Another object of the invention is to provide .a .simplified engine assembly .by constructing .a fuel injection pump accessory mounting which does not interfere with other accessories upon removal and installation.

For a more complete understandingof theprescntinvention, reference may be had to the accompanying drawings illustrating a preferred embodimentof the invention 'in which like characters refer to like parts throughout the several views and in which Fig. l is an elevational end .view, partially vcutaway of a preferred V-type'internal combustion engine incorporating the invention.

Fig. 2 is a diagrammatic cross-section primarily showing the accessory portion of the engine taken substantially on the line 22 of Fig. 1.

Fig. 3 is.an enlarged fragmentary view of the .-fuel in-- jectionpump and mounting'brac'ket shown in Fig. 2.

Fig. 4 is a cross section taken substantially on .the line 4 4 of Fig. 3.

Fig. 5 is an end view of the mounting bracket as seen from the line 5-5 of Fig. 3, and

Fig. 6 is an end view of the bracket as seen from the line 6-6 of Fig. 3. I

Fig. 7 is a cross-section taken substantially on the line 7-7 of Fig. 2.

Referring to Fig. 1, a fuel injection V-type internal combustion engine 10 is illustrated as having a crankcase structure 11 provided with a substantially fiat upper mounting surface 11a and inclined side surfaces 11b to which banks of cylinders 12 are secured. The upper surface 11a is the mounting base for an accessory gear housing 13 and the varlous engine accessories, such as blower fan assemblies .14 andfuel injection pump assemblies 15.

All the accessories are adapted to be operated-through an accessorydrive shaft assembly 16 as shownin Fig. 2.- At .one end of the drive shaft assembly 16 is a driven ,gear '17 which extends through =a.slot 18 in the crankcase structure 11 and is drivingly lmeshed with'a drive gear 19-preferably secured to'the flywheelend of a crankshaft 20. The accessory drive shaft assembly -16 preferably comprises ,a centrally longitudinally disposed shaft .21 overlying the crankcase-upper surface 11a and extending parallel to the axis .of the crankshaft 20. Theshaft 21 is directly drivingly connected to the blower fan assemolies 14 and any other desired accessories, and is .provided with a drivinggear 22 operably engaged with :a pair offuel injection -pump driven gears 23., as shown in Fig. 7. The driven gears v23-are secured to fuel injection pump drive shafts 24 which 221176 connected to sthe fuel injection pumps 15 through shaft coupler assemblies 25 of conventional construction permitting the pumps :15 to be readily disconnected from thedrive shafts 24.

Figs. 3 through '6 illustrate the fuel-injection;:pump mounting to the crankcase. -A mounting bracket structure 30 having inclined pump mounting faces 31 and foot members 32 is adapted to straddle the shaft 21 and to be secured to raised bosses 33 provided on-the crankcase upper surfacell a [bystud bolts .34 orother suitable means.

The fuel pumps 15 are secured 10 the mounting afaces .31by bolts 35 or other means, and are preferably-held in accurate longitudinal and lateral alignment with irespect to eachother by an upwardly turned flange imember 36 provided at one end of the bracket structure .30 and .by aplurality -of dowel pins 37 protruding from the mounting ,faces 31:and inserted ;in matching rholes provided in the base-of the pumps 15.

The pumps 15 may .thus .be benchadjusted and synchronized while .secured to .the mounting bracket -:structure v30, after :which the :bracket structure :is :secured :in place on thecrankcase -11. ln order :to achieve accurate alignment of .the .pumps .15 with their respective couplers 25, lugs or .dowels v40 are secured to .the bosses 33 thy bolts 41 ,or other means. The lugscoact :with :mating shoulders 42 providedon the inner portionsofthe'bracket legs.32 when the vbracket :structure 3.0;is1moved inplace toward the couplers 25, eifectinganautomatic alignment. Thisarrangement .permits quick assembly of'the pumps on the crankcase ina space which isznormally generally inaccessible, .and alsoeliminates the necessityxfor adjusting and synchronizing -pumps:after installation-on the-engine.

Also, it .will beseenthat the legs-of the bracket .procide a .tunnel :for -the shaft .121, which :is notdisturbed by the removal and installation of the pumps. In fact, tremoval andinstallationofgthe pumps is.achieved without removing or handling the other engine equipment, with the possible exception -;of .the fan members zltlaof the blower assemblies 14.

Although I have described but one embodiment of the present invention, it will be apparent to one skilled in the art to which the invention pertains that various changes and modifications may be made therein without departing from the spirit of the invention or the scope of the appended claims.

I claim:

1. In an internal combustion engine having an accessory mounting surface, accessory driving means, a plurality of accessories at least two of which are adapted to be synchronized and each of which has a driven element adapted for engagement with said driving means, and a mounting means for said synchronized accessories and adapted to be removably secured to said mounting surface, and-a dowel coacting with said mounting means and said mounting surface to locate and guide said mounting means for accurately aligning said driven elements with respect to said driving means as the assembled mounting means and accessories are being installed on said engine.

2. In a fuel injection type internal combustion engine having a crankcase provided with an accessory mounting surface, accessory driving means supported by said en gine and overlying said crankcase mounting surface, said accessory driving means comprising a plurality of mice tion pump driving means, a plurality of fuel injection pumps each having a driven element adapted to be removably engaged respectively with said injection pump driving means, and a pump mounting bracket adapted to be removably secured to said crankcase mounting surface, said pumps mounted on said bracket, and means coacting with said bracket and said crankcase to accurately align said pump driven elements with respect to said pump driving means as the assembled bracket and pumps are being installed on said crankcase.

3. In a fuel injection type internal combustion engine having a crankcase provided with an accessory mounting surface, accessory driving means supported by said engine and overlying said crankcase mounting surface, said accessory driving means comprising a plurality of rotatable shafts, a plurality of fuel injection pumps each having a driven element adapted to be removably engaged respectively with one of said shafts, and a pump mounting bracket adapted to be removably secured to said crankcase mounting surface and to straddle another of said shafts, said pumps mounted on said bracket, and means coacting with said bracket and said crankcase to accurately align said pump driven elements with respect to said first shafts as the assembled bracket and pumps are beinginstalled on said crankcase. 4. In a fuel injection type internal combustion engine having a crankcase provided with an accessory mounting surface, accessory driving means supported by said engine and overlying said crankcase mounting surface, said accessory driving means comprising a plurality of injection pump driving means, a plurality of fuel injection pumps each having a driven element adapted to be removably engaged respectively with said injection pump driving means, and a pump mounting bracket adapted to be removably secured to said crankcase mounting surface, said pumps mounted on said bracket, and means coacting with said bracket and said crankcase to accurately align said pump driven elements with respect to said pump driving means as the assembled bracket and pumps are being installed on said crankcase, said crankcase mounting surface provided with raised bosses, and said bracket having feet disposed to rest on said bosses, means securing said feet to said bosses, and said aligning means comprising dowel members laterally adjustably secured to said crankcase mounting surface and adapted to contact said bracket feet.

5. In an internal combustion engine having an acces- 6 4 be synchronized and each of which has a driven element adapted for engagement with said driving means, an integral support having symmetrically arranged inclined upper accessory mounting faces, means whereby both said synchronized accessories can be respectively secured to said inclined faces, and means removably securing said support to the accessory mounting surface of said engine.

6. In an internal combustion engine having an acces sory mounting surface, accessory driving means, a plurality of accessories at least two of 'which are adapted to be synchronized and each of which has a driven element adapted for engagement with said driving means, an integral support having symmetrically arranged inclined upper accessory mounting faces, means whereby both said synchronized accessories can be respectively secured to said inclined faces, and means removably securing said support to the accessory mounting surface of said engine, said support having a longitudinally extending tunnel, said accessory driving means having a drive shaft extending through said tunnel and drivingly connected to other accessories.

7. In an internal combustion engine having an accessory mounting surface, accessory driving means, a plurality of accessories at least two of which are adapted to be synchronized, said synchronized accessories each having a driven element carried thereby, a mounting structure removably secured to said mounting surface, said synchronized accessories secured to said mounting structure, said driven elements arranged for independent ad justment When said-assembled mounting structure and synchronized accessories are removed from said mounting surface and aligned for synchronized engagement with said driving means only when said assembled mounting structure and synchronized accessories are secured to said mounting surface.

8. In an internal combustion engine having an ac cessory mounting surface, accessory driving means, a plurality of accessories at least two of which are adapted to be synchronized, said synchronized accessories each having a driven element carried thereby, a mounting structure removably secured to said mounting surface, said synchronized accessories secured to said mounting structure, said driven element arranged for independent adjustment when said assembled mounting structure and synchronized accessories are removed from said mounting surface and aligned for synchronized engagement with said driving means only when said assembled mounting structure and synchronized accessories are secured to said mounting surface, and a dowel coacting with said mounting structure and said mounting surface to locate and guide said mounting means for accurately aligning said driven elements with respect to said driving 1 means as said mounting structure is positioned for securing same to said mounting surface.

References Cited in the file of this patent UNITED STATES PATENTS 1,191,553 Baldwin July 18, 1916 1,333,331 Moses Mar. 9, 1920 1,557,418 Chilton Oct. 13, 1925 

